BetaBetaDataset
To map out all the coastlines of the world.
This coastlines dataset have suspected accuracy for certain parts of the world, including northern Russia, southern Chile, and most egregiously, the west coast of the United States extending to the Baja Peninsula, Mexico, where the coast was approximately 7 km east of where it should be.
This dataset entail: small islands, ocean name, and scale rank.
Satellite imagery